fix(core): update

test/test.ts

@@ -36,4 +36,12 @@ tap.test('should be greater than', async () => {
   smartexpect.expect(4).toBeLessThan(5);
 })
 
+tap.test('should correctly determine toContain', async () => {
+  const hello = {
+    socool: 'yes'
+  };
+  const testArray = [hello];
+  smartexpect.expect(testArray).toContain(hello);
+})
+
 tap.start();